The purpose of this study is to demonstrate activities, falls and life satisfaction of elderly persons living alone in the snowy cold region A city during the winter season. The subjects of this investigation are 328 elderly persons living alone who are the age of 65 years old or older, living in A city. The investigation was conducted by using questionnaires that were mailed by post to each individual subjects. Valid responses were obtained from 139 individuals (22 men, 117 women, valid reply rate : 75.1%). The data was then analyzed statistically (descriptive statistics, chi-square test, Mann-Whitney test).As a result, frequency of going outdoors was associated with age, sex, and the Tokyo Metropolitan Institute of Gerontology Index of Competence. Also, regular exercise was associated with subjective health and the Tokyo Metropolitan Institute of Gerontology Index of Competence. Moreover, frequency of falling down was associated with subjective health. The effects of climate on life were not associated with the frequency of falling down, however, the effects of climate on life were associated with the fear of falling down and life satisfaction. This investigation suggests that regarding health support for elderly persons living alone, it is necessary to take into consideration the issue of fear of falling down.